In terms of escalation, you're still at an early stage and i don't know what you mean by that to be honest but there's still a lot to be on.
From here, just procceed like you left off. She seemed to be pretty interested in you if she kept looking back so all you have to do, is meet up, hug her would be my recommendation (you can always escalate on the date anyways) and create an interesting topic that you two can conversate about (sky diving is a good one with almost any girl) and you can also fluff a bit if you want.
Making a date interesting isn't all that hard. Just think outside the box, where have all those AFC's taken her before? The movies and probably some restaurant. Do something fun and creative, the aquarium sounds like a good idea and even if it's not, you can always be spontaneous and take the date on a random turn for the better and go somewhere else. An interesting date isn't necessarily built up by what you do/where you go, it's depends on how you lead it. It's like talking to a girl about boring stuff can be interesting for her if you make it interesting such as google earth (mysetery) or even fish oil pills like TD. No lame conversations should be done and what i do that makes the girls have a fun time with me that i KNOW no other guy has done before is randomly stop while we are walking and randomly pull her over by the hand, escalate to the hips and pull her in for a kiss. That's exciting for her and even if i do it multiple times, i'm random with it so they never know when it's gonna come next.
Where to go for the date is anywhere BUT the cinema/movie theatre or a restaurant. The movie theatre is boring unless you get a handjob in an empty theatre and the restaurant is horrible because all you do is usually small talk, eat and if you two end up having no commonalities or are bored, it makes it awkward because you have to sit there usually until the meal is ordered.
I know it might not be the best adivce but hey, I'm only 16.
Regardless, take care man and good luck on your day date!
